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Blueprint Touch Button

Hey guys,

I've been looking around and seen A LOT of people are running into trouble doing some very basic HUD stuff, I know there isnt much documentation at the moment out there.

I'm looking to do a simple touch button based on the Content HUD Example, but running into a lot of troubles.

I have currently got a Rectangle to appear on my hud, but not too sure on how to connect it to a 'TouchBegin' event and make it call a function from a different Blueprint.


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asked Apr 21 '14 at 03:02 PM in Blueprint Scripting

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I believe this is done using hitbox's. I created a var and set it when creating the button, and then use that for the TouchBegin.

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answered Apr 21 '14 at 04:22 PM

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avatar image Papasmurfo Apr 21 '14 at 08:16 PM

Can you take my through the steps in more detail?

Currently I have attached it to the camera and added a 'Text' block in the components, then linked it to a TouchBegin event.

Any staff help would be appreciated as a lot of people are getting into a tangle over this.

avatar image Eddy71 Apr 21 '14 at 09:38 PM

The normal steps for HUD are : 1 - After "Event Receive Draw HUD", add an Hit Box. 2 - Add an "Event Receive Hit Box Click".

You can see little example here, in a discussion I opened : https://answers.unrealengine.com/questions/31397/hud-hitbox-dont-receive-event-on-mobile.html

But I have no event received with this.

Maybe it's a bug, but without UE developers response I'm not sure.

Maybe the 4.1 update will correct this ?

avatar image Papasmurfo Apr 22 '14 at 10:03 AM

Thanks for the Response - I hear they have Slate? But I can't see any documentation or anything about how to run it?

avatar image Eddy71 Apr 22 '14 at 02:55 PM

I have not yet the time to try Slate.

You can find tutorials on the Wiki :



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